Study of the work roll cooling in hot rolling process with regard on service life

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F13%3APU104673" target="_blank" >RIV/00216305:26210/13:PU104673 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Study of the work roll cooling in hot rolling process with regard on service life

Popis výsledku v původním jazyce

Operational conditions and many studies confirmed that the work rolls cooling in hot rolling process have significant impact on damage and service life. The specific approach based on the numerical simulation and experimental results of the work roll cooling optimization and service life improvement is presented in this paper. The 3D finite element model was prepared for the numerical simulations of the work roll cooling. The FE model represents circular sector of the work roll. The model is fully parametric. It is capable to simulate a roll with any diameter, any thickness. Each of the model parameters can be easily changed based on user requirements. The stress state is calculated by ANSYS in two steps. At first, the thermal conditions as starting temperature of the roll, cooling intensity and so on are applied and time dependent thermal analysis is performed. The temperature field of work roll is obtained from transient thermal analysis and is used as thermal loads in second step. In the second step structural analysis is carried out. The other relevant boundary conditions as normal, shear and contact pressure are considered in structural analysis. The Tselikov load distribution model is used for normal and shear stress distribution in a rolling gap. The boundary conditions for FE analysis are prepared in software MATLAB. All considered boundary conditions are based on real measured data from hot rolling mills. The results of the performed analyses are focused on the description of the assessing methodology of the work rolls cooling on the stresses, deformations and service life of the rolls.

Název v anglickém jazyce

Study of the work roll cooling in hot rolling process with regard on service life

Popis výsledku anglicky

Operational conditions and many studies confirmed that the work rolls cooling in hot rolling process have significant impact on damage and service life. The specific approach based on the numerical simulation and experimental results of the work roll cooling optimization and service life improvement is presented in this paper. The 3D finite element model was prepared for the numerical simulations of the work roll cooling. The FE model represents circular sector of the work roll. The model is fully parametric. It is capable to simulate a roll with any diameter, any thickness. Each of the model parameters can be easily changed based on user requirements. The stress state is calculated by ANSYS in two steps. At first, the thermal conditions as starting temperature of the roll, cooling intensity and so on are applied and time dependent thermal analysis is performed. The temperature field of work roll is obtained from transient thermal analysis and is used as thermal loads in second step. In the second step structural analysis is carried out. The other relevant boundary conditions as normal, shear and contact pressure are considered in structural analysis. The Tselikov load distribution model is used for normal and shear stress distribution in a rolling gap. The boundary conditions for FE analysis are prepared in software MATLAB. All considered boundary conditions are based on real measured data from hot rolling mills. The results of the performed analyses are focused on the description of the assessing methodology of the work rolls cooling on the stresses, deformations and service life of the rolls.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/EE2.3.20.0188" target="_blank" >EE2.3.20.0188: Multidisciplinární tým pro výzkum a aplikace tepelných procesů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Rolling 2013

ISBN

9788885298958

ISSN

—

e-ISSN

—

Počet stran výsledku

12

Strana od-do

1-12

Název nakladatele

AIM Italy

Místo vydání

Venice

Místo konání akce

Venice

Datum konání akce

10. 6. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—